Answer:
Step-by-step explanation:
2 / 3 ( 4x + 9 )
Distributive property
2 / 12x + 27
Answer:
n must be 27
Step-by-step explanation:
Let this number be x. Then -6(n - 12) = -90.
Dividing both sides by -6 yields n - 12 = 15.
Add 12 to both sides.
Then n must be 27.
Check: subtract 12 from 27; this yields 15. Now multiply this result by -6. The result is -90, which was expected.
Answer:
3x - 2
Step-by-step explanation:
To find tye difference between 2x - 3 and -x - 1, subtract the two expressions
2x - 3 - (-x - 1)
2x - 3 + x + 1
3x - 2
Answer:
25, 26, 27
Step-by-step explanation:
set up an equation so 3 consecutive numbers are n, n+1, and n+2
So n + n +1 + n + 2 = 78, so 3n + 3 = 78, 3n = 75, so n = 25
so the numbers are 25, 26, 27
Answer:
Step-by-step explanation:
Triangles which have two legs and a hypotenuse are called right triangles. Right triangles have a special relationship between their sides called the Pythagorean Theorem. If a = 3 and b= 3, then find c using the Pythagorean theorem below.